Input impedance of a short dipole antenna in a warm anisotropic plasma, 2, Experiment
Input impedance of a short dipole antenna in a warm anisotropic plasma, 2, Experiment
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热各向异性等离子体中短偶极子天线的输入阻抗，2，实验
DOI：
10.1029/rs011i006p00517
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发表时间：
1976
期刊：
影响因子：
1.6
通讯作者：
H. H. Kuehl
中科院分区：
文献类型：
--
作者：
D. T. Nakatani;H. H. Kuehl
给出了脉冲射频放电各向异性Ar等离子体中短圆柱偶极子输入阻抗的测量结果。实验结果表明，当天线频率通过电子回旋频率的谐波时，输入阻抗发生了显著的变化，这与动力学理论的预测是一致的。总的来说，在很大范围的等离子体参数范围内，实验结果和理论结果之间的相关性被认为是中等到非常好的。发现等离子体鞘的影响是重要的，并包括了一个基于简单鞘模型的鞘修正项，用于关联实验和理论结果。使用曲线拟合技术，确定了鞘厚度为3λD。在高于谐波的偶极频率上的阻抗测量显示了反常的结果，并用动力学理论解释了这一结果。
The measured input impedance of a short, cylindrical dipole immersed in a pulsed, RF discharge, anisotropic, argon plasma is presented. The experimental results show that the input impedance undergoes a pronounced change when the antenna frequency passes through the harmonics of the electron cyclotron frequency, which is in agreement with the predictions of kinetic theory. In general, the correlations between experimental and theoretical results are judged as fair to very good over a wide range of plasma parameters. Effects of the plasma sheath are found to be important and a sheath correction term based on a simple sheath model is included for correlating experimental and theoretical results. Using a curve-fitting technique, a sheath thickness of 3λD was determined. Impedance measurements at dipole frequencies above the harmonics showed anomalous results which are explained by kinetic theory.